Environmental Protection Agency, Petitioner v. Calumet Shreveport Refining, L.L.C., et al.

The Supreme Court ruled that small oil refineries must challenge EPA exemption denials in the D.C. Circuit Court of Appeals rather than in local regional courts. The Court found that because the EPA used a uniform national policy to deny these hardship requests, the decisions have a 'nationwide scope or effect.' This means the Clean Air Act requires these cases to be heard in a single centralized court to ensure consistency.

This ruling prevents 'forum shopping,' where companies look for friendly local courts to overturn federal environmental rules. For small refineries, it means they must travel to Washington D.C. to fight for exemptions from expensive renewable fuel blending requirements. This could make it harder and more expensive for local refineries to win legal battles against the EPA.

The case centers on the Renewable Fuel Standard, a program designed to reduce greenhouse gas emissions by requiring more ethanol and biofuels in gasoline. It highlights a long-standing tension between federal agencies trying to enforce national standards and local businesses seeking relief from high compliance costs. The decision reinforces the D.C. Circuit's role as the primary gatekeeper for major federal environmental regulations.

Justice Clarence Thomas wrote the 7-2 majority opinion, joined by six other justices. Justice Neil Gorsuch wrote a dissenting opinion, which was joined by Chief Justice John Roberts.

“Determinations have nationwide 'scope' if they apply throughout the country as a legal matter or nationwide 'effect' if they apply as a practical matter.”

“The majority’s new test will make simple venue questions unnecessarily difficult and expensive to resolve.”

Small refineries cannot sue the EPA in their local regional courts when the agency uses a nationwide policy to deny fuel standard exemptions.

The case will return to lower courts to be dismissed or transferred to the D.C. Circuit. Refineries and environmental groups will now watch how the D.C. Circuit handles the backlog of exemption challenges. This ruling may also influence where other challenges to federal agency actions are filed in the future.

The refineries wanted to sue in local courts to get exemptions from biofuel rules. The EPA argued these cases belong in D.C. because the rules apply to the whole country.

Refineries may face higher legal costs by being forced to litigate in Washington D.C. They might also find it harder to win against the EPA in a more centralized court.

The Court ruled that if an EPA action is based on a 'nationwide determination,' it must go to the D.C. Circuit. This applies even if the action only affects one specific refinery.

The cases will be sent back to the lower courts to follow the Supreme Court's instructions. Most will likely be transferred to the U.S. Court of Appeals for the D.C. Circuit.

It shows the Court's effort to clarify where people can challenge federal power. It centralizes authority in D.C. to prevent different regions from having different environmental rules.